Resharding hash slots in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to start moving hash slots from one node to another.

Redis

CLUSTER SETSLOT [1] MIGRATING <node_id>

Drag options to blanks, or click blank then click option'

Aslot

Bslots

Cmigrating

Dimporting

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'slots' instead of 'slot'

Using 'migrating' or 'importing' as the slot number

The command requires the specific slot number to set it as migrating.

2fill in blank

medium

Complete the command to assign a hash slot to a node after migration.

Redis

CLUSTER SETSLOT [1] NODE <node_id>

Drag options to blanks, or click blank then click option'

Amigrating

Bimporting

Cslot

Dslots

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'migrating' instead of 'slot'

Using plural 'slots' instead of singular 'slot'

After migrating, you assign the slot to the new node.

3fill in blank

hard

Fix the error in the command to mark a slot as importing on the target node.

Redis

CLUSTER SETSLOT [1] IMPORTING <source_node_id>

Drag options to blanks, or click blank then click option'

Aslots

Bslot

Cmigrating

Dimport

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'slots' instead of 'slot'

Using 'import' instead of 'importing'

The correct keyword is the singular slot to specify which slot is importing.

4fill in blank

hard

Fill both blanks to complete the command that moves a key to the target node during resharding.

Redis

MIGRATE [1] 6379 [2] 0 5000

Drag options to blanks, or click blank then click option'

A127.0.0.1

Bkey

Cdestination_ip

Dkeyname

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping IP and key name

Using 'key' instead of actual key name

The MIGRATE command needs the destination IP and the key name to move the key.

5fill in blank

hard

Fill all three blanks to complete the command that finalizes slot migration by setting the slot state.

Redis

CLUSTER SETSLOT [1] [2] [3]

Drag options to blanks, or click blank then click option'

Aslot

BNODE

C<node_id>

DMIGRATING

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'MIGRATING' instead of 'NODE' in second blank

Omitting the node ID

The command sets the slot to the NODE with the given node ID after migration.